Pith Number

pith:X34KTCOZ

pith:2018:X34KTCOZU4L2XDHG7ILBDAF3H6

not attested not anchored not stored refs pending

Cantor combinatorics and almost finiteness

Gabor Elek

arxiv:1802.01908 v1 · 2018-02-06 · math.DS · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X34KTCOZU4L2XDHG7ILBDAF3H6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:24:20.951893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bef8a989d9a717ab8ce6fa161180bb3fbc31d71c53f284316c746cacbfad63a1

Aliases

arxiv: 1802.01908 · arxiv_version: 1802.01908v1 · doi: 10.48550/arxiv.1802.01908 · pith_short_12: X34KTCOZU4L2 · pith_short_16: X34KTCOZU4L2XDHG · pith_short_8: X34KTCOZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/X34KTCOZU4L2XDHG7ILBDAF3H6 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: bef8a989d9a717ab8ce6fa161180bb3fbc31d71c53f284316c746cacbfad63a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4473570a259d5b425a9fb1613c94988642b259a0973863ed3b132026f09e1c99",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-02-06T12:36:49Z",
    "title_canon_sha256": "fdbc2a0a45e179c7203fb442f8ab6f6785c602ed01695aa42fa57320008dcee8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01908",
    "kind": "arxiv",
    "version": 1
  }
}